Sep 12 – 16, 2016
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Antiproton Flux and Antiproton-to-Proton Flux Ration Measured by with the Alpha Magnetic Spectrometer on the International Space Station

Sep 12, 2016, 2:40 PM
40/S2-D01 - Salle Dirac (CERN)

40/S2-D01 - Salle Dirac


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Oral Contributions Cosmic rays Cosmic rays


Andreas Bachlechner (Rheinisch-Westfaelische Tech. Hoch. (DE))


A precision measurement by AMS of the antiproton flux and
the antiproton-to-proton flux ratio in primary cosmic rays in the
absolute rigidity range from 1 to 450 GV is presented based on $3.49 \times 10^5$ antiproton events and $2.42 \times 10^9$ proton events. The
antiproton-to-proton flux ratio reaches a maximum at ∼20 GV and is
rigidity independent above 60.3 GV.

Primary author

Andreas Bachlechner (Rheinisch-Westfaelische Tech. Hoch. (DE))

Presentation materials